The 10-Day Forecast in Weather app always shows vastly incorrect modeling

The Weather app on both iPad and iPhone is highly inaccurate as the days progress in the 10-Day forecast. Example: today in Chicago it states next Tuesday it will be 109 degrees F. Yesterday, the app claimed next Monday would be 111 degrees F. Then today readjusted down 15 degrees F.

The data feeds or AI used are not accurate and need correction.